In this TED Talk, 2013 TED Prize Winner Sugata Mitra believes that a child-driven education is the best way for kids to learn. Mitra shares his findings from his Granny Cloud and Hole in the Wall projects.

When about 97 percent of India's vultures died due to eating carcasses that contained a drug called diclofenac, it caused a boom in the feral dog population. The resulting rabies epidemic cost India billions of dollars between 1993 and 2006.